165 neck size 1900g ocean float 2 cavity custom preform molds
Custom two-cavity injection mold designed specifically for manufacturing large, heavy-duty PET preforms intended for ocean float applications. Each preform features a 165 mm neck finish and a substantial shot weight of 1900 grams. The mold is engineered for the demanding requirements of producing robust flotation components resistant to marine environments."
Key elements highlighted:
Custom: Emphasizes the mold is built to specific, non-standard requirements.
Two-Cavity: Specifies the mold produces two preforms per cycle.
Injection Mold: States the core manufacturing process.
PET Preforms: Identifies the product type (typically for blow molding into final shapes).
Ocean Float Application: Defines the intended end-use (marine flotation devices).
165 mm Neck Size: Highlights the critical neck dimension (thread/finish size).
1900g Shot Weight: Specifies the significant mass of each preform.
Heavy-Duty & Robust: Conveys the strength needed for the application and weight.
Resistant to Marine Environments: Addresses the environmental challenge (saltwater, UV, impact).
Why this works:
Accuracy: Includes all provided technical specs (165mm neck, 1900g weight, ocean float, 2 cavity, custom).
Clarity: Clearly states what the mold is and what it produces.
Context: Explains the significance of the size (heavy-duty) and application (marine environment resistance).
Professional: Uses standard industry terminology (injection mold, preform, cavity, neck finish, shot weight).
Alternative (Slightly More Concise):
"Custom 2-cavity injection mold for producing 1900g PET preforms with a 165 mm neck, specifically engineered for heavy-duty ocean float applications."
Choose the description that best fits the context where it will be used (e.g., technical datasheet, sales listing, internal documentation). Both accurately convey the unique specifications of this large-scale mold.
Leizhen’s Advantages in the Preform Mold Process: Precision, Innovation, and Reliability
In the competitive world of PET preform mold manufacturing, Leizhen has emerged as a trusted partner for brands and bottlers worldwide. Renowned for its engineering expertise, cutting-edge technology, and customer-centric approach, Leizhen delivers molds that optimize production efficiency, quality, and cost-effectiveness. Here’s an in-depth look at the advantages that set Leizhen apart in the preform mold industry:

Professional PET preform mold manufacturer | Helping efficient production and achieving perfect bottle shape
As an industry-leading PET preform mold manufacturer, we focus on providing high-precision, long-life, customized preform mold solutions for global beverage, food, daily chemical and pharmaceutical companies. From design to mass production, we use innovative technology and excellent quality to help you achieve a double breakthrough in production efficiency and product quality!
(Mold Cav Qty) |
Neck Size) |
Application |
18 cav |
48mm, 38mm,30/25,20/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
24 cav |
48mm,38mm,30/25,29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical, products, edible oil, medicine |
32 cav |
48mm,38mm,30/25,29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
48 cav |
48mm,38mm,30/25,29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
56 cav |
48mm, 38mm, 30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
72 cav |
38mm, 30/25,29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, medicine |
96 cav |
38mm, 30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, medicine |
112 cav |
30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
128 cav |
30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
144 cav |
30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |
176 cav |
30/25, 29/25, PCO1881, PCO1810 |
Water, Juice, CSD, Daily chemical products, edible oil, medicine |

Uniform Preform Quality: Advanced flow simulation software balances the runner system, guaranteeing consistent filling and wall thickness across all cavities.
Tight Tolerances: Precision machining (±0.005mm) ensures compliance with international standards (e.g., PCO 1881, BPF) for neck finishes and thread designs.
Durability: Molds are crafted from premium steel (H13, S136, or 420 stainless steel) with heat treatment (HRC 48–52) to withstand millions of cycles.
Conformal Cooling Channels: 3D-printed or machined cooling channels follow the contour of the preform, reducing cycle times by up to 30% and minimizing warpage.
Hot Runner Systems: Partnerships with top brands like Yudo or INCOE ensure leak-free, energy-efficient melt delivery. Valve-gated systems enable clean gate cuts for lightweight preforms.
High-Speed Compatibility: Molds are optimized for machines with clamping forces up to 1,500 tons, achieving cycle times as low as 8–12 seconds for 20g preforms.
In-House Testing: Every mold undergoes trial runs on injection molding machines to validate cycle times, cooling efficiency, and preform dimensions.
ISO Certification: Compliance with ISO 9001 standards ensures traceability and accountability at every production stage.
Third-Party Inspections: Collaborations with global certification bodies verify compliance with FDA, EU, and other regional regulations for food-grade PET.
Competitive Pricing: Direct manufacturing in China reduces overhead costs, offering savings of 20–40% compared to Western suppliers.
Long Mold Lifespan: Durable materials and coatings (e.g., nitriding, DLC) extend mold life to 3+ million shots, lowering cost-per-preform.

How to place an order for moulds? | |
1.R&D | We support customer R&D. Make the files or improve the design if you needed. |
2. Quotation Making | Mould Quotation will be finished in 1 day according to the information we get. |
3. Negotiation | The quality, price, material, delivery time, payment item, etc. |
4. Mould Design | 1-2days for product 3D/2D drawing design as per customer's design. Then in further make the mould 2D/3D design. |
5. Mould | 1. confirm the products and the mold design |
2. Mould material prepare | |
3. Rough machining(heat treatment on mold base and pre-harden on mold) | |
4. CNC/ Vacuum Hardening on mold main spare parts | |
5. finishing machining( JDPAINT, DEM.etc) | |
6. Dimension inspection | |
7. Ejector& runner& cooling & other device processes | |
8. Assemble mold | |
6. Mould Testing | When moulds are finished, we will test the mould and we will send samples to client. |
7. Sample confirmation | If the first sample is not satisfied by the customer when it is come out. We modify the mould until meet the customer’s satisfaction. |
8. Delivery | Delivery goods by sea or by air, according to customer’s requirement. |